As a non-specialist, at first glance these drills seemed satisfactory to me and I gave 5 stars. Unfortunately, from the first use on 7 mm plywood it is a complete disappointment. These drills should at least be sharp , and the edges a bit prominent to cut the the circumference of the hole of the hole. Here it is not and the holes are jagged irregularly (photo 1). Photo 2 shows in comparison a decent drill from another manufacture (but more expensive!). Don't buy these cheap drills, they are almost unusable and will waste your time doing disastrous work.
As a non-specialist, at first glance these drills seemed satisfactory to me and I gave 5 stars. Unfortunately, from the first use on 7 mm plywood it is a complete disappointment. These drills should at least be sharp , and the edges a bit prominent to cut the the circumference of the hole of the hole. Here it is not and the holes are jagged irregularly (photo 1). Photo 2 shows in comparison a decent drill from another manufacture (but more expensive!). Don't buy these cheap drills, they are almost unusable and will waste your time doing disastrous work.